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Posted to issues@ignite.apache.org by "Vladimir Ozerov (JIRA)" <ji...@apache.org> on 2019/03/11 07:39:01 UTC
[jira] [Updated] (IGNITE-10576) MVCC TX: Rework
UpdateSourceIterator to mix operation types
[ https://issues.apache.org/jira/browse/IGNITE-10576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vladimir Ozerov updated IGNITE-10576:
-------------------------------------
Issue Type: Task (was: Improvement)
> MVCC TX: Rework UpdateSourceIterator to mix operation types
> -----------------------------------------------------------
>
> Key: IGNITE-10576
> URL: https://issues.apache.org/jira/browse/IGNITE-10576
> Project: Ignite
> Issue Type: Task
> Components: mvcc
> Reporter: Igor Seliverstov
> Priority: Major
> Fix For: 2.8
>
>
> The current UpdateSourceIterator implementation doesn't suit Cache API needs. It should be able to mix operation types per key.
> For example we may execute putAll operation with a half of keys are having values and a half aren't, this way we should mix DELETE operation for null-value keys and PUT operation for others.
> Another use case is a transform operation which should turn into a number of PUT/UPDATE/DELETE operations on a backup node.
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